updating source-map from 0.6.1 to 0.7.0 fails recast unit tests due to missing methods in SourceMapConsumer

[GerHobbelt]

Error message:

  1) source maps
       should generate correct mappings:
     TypeError: smc.originalPositionFor is not a function
      at check (...path...\lib\js\recast\test\mapping.js:59:34)
      at Context.<anonymous> (...path...\lib\js\recast\test\mapping.js:80:9)
      at callFn (...path...\lib\js\recast\node_modules\mocha\lib\runnable.js:360:21)
      at Test.Runnable.run (...path...\lib\js\recast\node_modules\mocha\lib\runnable.js:352:7)
      at Runner.runTest (...path...\lib\js\recast\node_modules\mocha\lib\runner.js:442:10)
      at ...path...\lib\js\recast\node_modules\mocha\lib\runner.js:560:12
      at next (...path...\lib\js\recast\node_modules\mocha\lib\runner.js:356:14)
      at ...path...\lib\js\recast\node_modules\mocha\lib\runner.js:366:7
      at next (...path...\lib\js\recast\node_modules\mocha\lib\runner.js:290:14)
      at Immediate.<anonymous> (...path...\lib\js\recast\node_modules\mocha\lib\runner.js:334:5)
      at runCallback (timers.js:789:20)
      at tryOnImmediate (timers.js:751:5)
      at processImmediate [as _immediateCallback] (timers.js:722:5)

  2) source maps
       should compose with inputSourceMap:
     TypeError: smcLatter.eachMapping is not a function
      at Object.util.composeSourceMaps (...path...\lib\js\recast\lib\util.js:56:13)
      at Printer.print (...path...\lib\js\recast\lib\printer.js:173:18)
      at Context.<anonymous> (...path...\lib\js\recast\test\mapping.js:141:12)
      at callFn (...path...\lib\js\recast\node_modules\mocha\lib\runnable.js:360:21)
      at Test.Runnable.run (...path...\lib\js\recast\node_modules\mocha\lib\runnable.js:352:7)
      at Runner.runTest (...path...\lib\js\recast\node_modules\mocha\lib\runner.js:442:10)
      at ...path...\lib\js\recast\node_modules\mocha\lib\runner.js:560:12
      at next (...path...\lib\js\recast\node_modules\mocha\lib\runner.js:356:14)
      at ...path...\lib\js\recast\node_modules\mocha\lib\runner.js:366:7
      at next (...path...\lib\js\recast\node_modules\mocha\lib\runner.js:290:14)
      at Immediate.<anonymous> (...path...\lib\js\recast\node_modules\mocha\lib\runner.js:334:5)
      at runCallback (timers.js:789:20)
      at tryOnImmediate (timers.js:751:5)
      at processImmediate [as _immediateCallback] (timers.js:722:5)

How to reproduce

• fetch https://github.com/GerHobbelt/recast

• in that repository's directory, run these commands:

• npm i

• npm test --> SUCCESS

• now update package.json file: source-map from "0.6.1" to "0.7.0" (or do this using a tool such as this command line: ncu -a --packageFile=package.json

• rm package-lock.json

• rm -rf node_modules/source-map/

• npm i

• npm test --> FAIL (with error report shown above)

See also: GerHobbelt/recast@ff1a45b

[fitzgen]

Did you wait for the promise returned by new SourceMapConsumer? https://github.com/mozilla/source-map/blob/master/CHANGELOG.md#070